Type-writing machine.



PATENTED JAN. 2, 1906.

H. W. MERRITT. TYPE WRITING MACHINE.

APPLICATION FILED JUNE 23, 1904.

WITNESSES:

UNITED STATES PATENT OFFICE.

HENRY W. MERRITT, OF SYRACUSE, NEW YORK, ASSIGNOR TO THE MON ARCHTYPEWRITER COMPANY, OF SYRACUSE, NEW YORKQA TYPE-WRETING MACHINE.

Specification of Letters Patent.

Patented J an. 2, 1906.

Application filed June 23, 1904- Serial No.

To all whom, it mxty concern:

Be it known that I, HENRY W. MERRITT, a citizen of the United States,and a resident of Syracuse, in the county of Onondaga and State of NewYork, have invented certain new and useful Improvements in Type-WritingMachines, of which the following is a specifica tion.

This invention relates to type-writing machines, and has for its mainobjects to provide a support for the paper, on which erasures mayreadily and conveniently be made, and to provide a mounting for themeans for guiding and holding the paper.

My invention consists in certain features of construction andcombinations of devices, all as will hereinafter be described, andparticularly pointed out in the concluding claims.

The invention is shown as embodied in the Monarch type-writing machine,but it is to be understood that it may be adapted to other forms ofwriting-machines.

In the accompanying drawings, Figure 1 is a top plan view of the platenand platen-frame of a type-writing machine, showing my inventionembodied therein, certain parts being omitted and broken away for thesake of clearness. Fig. 2 is a sectional side elevation taken on theline it as of Fig. 1, and Fig. 3 is a fragmentary front elevation of theplaten and showing the invention in relation therewith.

In the drawings, 1 is the top plate of the machine, and 2 is one of theposts for the guiding and supporting rails 3 of the platen-carriage 1.The grooved back bar 5 of the platen-carriage cooperates with the rails3 through roller-bearings, and the side bars 6 and 7 serve to supportthe platen 8. The paper, which is represented by the dotted line 9, isfed around the platen in a manner well understood, passing into themachine over the papertable 10 at the rear of the platen. The side bars6 and 7 are formed with standards or lugs 11 and 12, which serve tosupport the erasingplate 18, which consists of a bar, blade, or plate 14and a rod or shaft-like portion 15. The ends of the rod or shaft-likeportion are formed with holes that are tapped to receive the headedscrews 16, which pass through perforations in the lugs 11 and 12 and arescrewed tightly into the ends of the shaft-like portion. Theerasing-plate is thus firmly secured in place, a tongue-and-grooveconnection with the lugs 11 and 12 preventing its rotation or lateraldisplacement.

Mounted upon the erasing-plate are the marginal paper-fingers 17, eachof which is composed of a supporting portion, a guiding and holdingportion, and afeed-roll portion, the two latter parts beingindependently mounted on the first-named part. The support of eachmarginal paper-finger is composed of a hublike portion 18, which iscutaway or formed C-shaped, so that it may surround or embrace therod-like part 15 of the erasing-plate, and of an arm 19, projectingforwardly and over the erasing-plate from the hub-like portion and at aright angle to the latter, with which it is made integral. Driven intoor otherwise suitably secured in the inner'side of the arm 19 is a shortrod 20, upon which is mounted the paper guiding and holding member orfinger proper, 21. The latter is pivoted on the rod 20 by means ofperforated upturned ears 22 and is pressed toward the platen by a spiralspring 23, which surrounds the rod 20. Pivoted upon the arm 19 at 24,slightly in the rear of the rod 20, is the rollholder 25, supporting atits forward end a fixed pivot-rod 26, upon which turns a feedroll 27.The roll-holder is provided with a handle 28, by which it and the rollmay be turned up or down. The roll-holder is preferably made from apiece of sheet-metal so formedand bent as to produce a U-shaped devicehaving ears for the pivot 24 and bearings for the pin 26, the sidemembers of the device being connected by a roof or crosspiece, therearmost end of which is formed or fashioned into an ear or extension29, located above and forward of the axis of the roll-holder. Againstthis lug presses the forward end of a leaf-spring 30, the latter being.suitably attached, as by a rivet 31, to the arm 19. The pressure of thespring maintains the feed-roll 27 in frictional contact with the platenor the paper thereon. When it is desired to separate the feed-roll 27from the platen, the former is turned up out of working position aboutits pivot 24: by means of the handle 28 and is maintained in non-workingposition by the pressure of the forward end of the spring 30 against theend of the lug 29. This movement of the roll-holder and the feed-rollabout the axis 24 is entirely independent of the pivotal movement of theguiding member 21 about its rod 20, and the pressure to which the saidguiding member is subjected by its spring 23 is entirely inde pendent ofthe pressure of the spring 30 on the roll-holder. The guiding member 21is cut away at 32 to permit the feed-roll 27 to contact with the platen,and the said guiding member may be rotated out of or into contact withthe platen or paper without disturbing the feed-roll, just as thefeed-roll may be turned into working or non-working position withoutdisturbing the guiding me'm- I ber 21.

Pivoted at 33 in the arm 19 is a latch 34, which enters a slot formed inthe rear side of the hub 18. The upper portion of the latch terminatesin a thumb-piece 35, with which the rear end of the spring 36 coacts,the pressure of the said spring serving to press the lower part of thelatch 34 forwardly about its pivot and into engagement with any one of aseries of shallow vertical notches 37,constituting a rack, formed on therear side of the erasingtable 14. The spring 36 is preferably formedintegral with the same strip of metal of which spring 30 is made, whichis a convenient and economical construction, although the springs may bewholly separate as they per form each its own function. Either of thepaper-fingers may be released from engagement with the rack by forwardpressure on the thumb-piece 35 and may then be slid along theerasingplate to any desired position longitudinally of the platen andagain latched to the rack. The erasing-plate may be graduated, as at 38,in correspondence with the graduations of the platen-scale (not shown)to facilitate the positioning of the paper-fingers, although this is notessential, and the notches 37 may be formed to correspond also with thegraduations of the platen-scale. The rack and the spring-latches afforda positive connection between the paper-fingers and the erasingplatewhich prevents any accidental displacement of the paper-fingers.

As best appears in Fig. 2, the erasing-plate is supported at acomparatively short distance above the platen and slightly to the rearof its axis, the blade or plate-like portion extending downwardly andforwardly in the general direction of the delivery ends of the guidingportions 21 of the paper-fingers, so that as the paper is delivered fromthe machine it passes out over the face of the erasing-table and inclose proximity to it. The erasing-plate, it will be noted, is heldfixedly in the platen-carrier. The C-shaped hub-like portion of each ofthe marginal paper-fingers surrounds the rod or shaft-like portion ofthe erasing-plate, and the ends of the C in each hub-like portioncontact with the top and bottom surfaces of the blade of theerasing-plate. The result is that while the hub portion and thesupporting-arm 19, integral therewith, may move longitudinally of theerasing-plate they have no motion transversely either of thelat ter orof the platen; but though the arm 19 .is maintained in a fixed relationtransversely of the platen, yet the feed-roll 27 and the guiding member21, which are independently spring-mounted on the arm 19, are capable oftransverse movements in respect of the platen. The bodily movement ofthe marginal finger as an entirety is conveniently accomplished by thethumb-piece 35 after the latter has been pulled forward to release thelatch 34 from the rack. The spring-pressure of the latch 34 may be suchas to hold the marginal paperfinger in adjusted position without the useof the notches 37 Furthermore, the hub portion 18 may be of such lengthand may fit the shaft-like part of the erasing-table so closely as toproperly hold the paper-finger, in which case the spring-pressed latch34 may be dispensed with.

It is to be understood that the invention is not limited to theparticular construction or arrangement herein shown and described, butthat various changes may be made within its scope.

What I claim as new, and desire to secure by Letters Patent, is

1. In a type-writing machine, the combination of a platen, anerasing-plate and a paperfinger provided with a latch, said paper-fingerbeing mounted on said erasing-plate, and said latch contacting with saiderasing-plate.

2. In a type-writing machine, the combination of a platen, anerasingplate, and a paperfinger provided with a spring-pressed latch,said paper-finger being mounted on said erasing-plate and said latchbeing pressed by its spring against said erasing-plate.

3. In a type-writing machine, the combination of a platen, anerasing-plate, a paper-finger mounted on said erasing-plate, and meansfor positively maintaining a fixed relation between said paper-fingerand said erasingplate.

4. In a type-writing machine, the combination of a platen, anerasing-plate, a rack, and a paper-finger, said paper-finger being mounted on said erasing-plate and having a latch engaging said rack.

5. In a type-writing machine, the combination of a platen, anerasing-plate, a rack, and a paper-finger, said paper-finger beingmounted on said erasing-plate and having aspringpressed latch engagingwith said rack.

6. In a type-writing machine, the combination of a platen, anerasing-plate provided with a rack, and a paper-finger mounted on saiderasing-plate and having a latch engaging with the rack of the latter.

7. In a type-writing machine, the combination of a platen, a toothedmember, and a paper-finger provided with a pivoted latch having aspring-pressed finger-piece, said paperfinger being movablelongitudinally of said toothed member and being held positively in afixed relation with said toothed member by the latch of the paper-fingeruntil the latter is swung out of engagement with said toothed member.

8. In a type-writing machine, the combination of a platen, a toothedmember and a paper-finger provided with a pivoted latch, saidpaper-finger being movable longitudinally of and upon said toothedmember and being held positively engaged with said toothed member by thelatch until said latch is revolved out of the rack.

9. In a type-writing machine, the combination of a platen, anerasing-plate and a paperfinger mounted on said erasing-plate, saidpaperfinger comprising a supporting part, a feed-roll part and a holdingand guiding part.

10. Ina type-writing machine, the combination of a platen, anerasing-plate and a paper-finger mounted on said erasing-plate, saidpaper-finger comprising a supporting part, a feed-roll part and aholding and guiding part, the last two parts being independently pivotedon the first part.

11. In a type-writing machine, the combination of a platen, anerasing-plate and a paper-finger mounted on said erasing-plate, saidpaper-finger comprising a supporting part, a feed-roll part and aholding and guiding part,

the last two parts being independently spring.

mounted.

12. In a type-writing machine, the combination of a paper-feeding deviceand an erasing-plate formed with a blade portion and a toothed portionwith which last portion the paper-feeding device cooperates.

13. In a type-writing machine, the combination of a platen, aplaten-frame, a paperfinger mounted in said platen frame, saidpaper-linger comprising a supporting part, a feed-roll part and aguiding part, the last two parts being independently mounted on thefirst part, and springs, one of which is associated with each of saidlast two parts, each spring affecting only the part with which it isassociated.

15. In a type-writing machine, the combination of a platen, asupporting-arm, as 19, slidably mounted longitudinally of said platen, aroll-holder pivoted on said supporting-arm and provided with a lug, aspring coacting with said lug, a guiding member, as 21, pivoted on saidsupporting-arm independently of said roll-holder, and a spring actingsolely on said guiding member.

16. In a type-writing machine, the combination of a platen, aplaten-frame, a supporting-arm, as 19, slidably mounted longitudinallyof said platen, a retaining-latch pivoted on said sup porting-arm, aspring coacting with said retaining-latch, a roll-holder pivoted on saidsupporting-arm and provided with a lug, a spring coacting with said lug,a guiding member, as 21, pivoted on said supportingarm independently ofsaid roll-holder, and a spring acting solely on said guiding member.

17. In a type-writing machine, the combination of a platen, aplaten-frame, a supporting-arm, as 19, slidably mounted longitudinallyof said platen, a retaining-latch pivoted on said supporting-arm, aspring, as 36, coacting with said retaini-ng-latch, a roll-holderpivoted on said supporting-arm and provided with a lug, a spring, as 30,coacting with said lug, said spring 30 being integral with said spring36, and a spring mounted guiding member, as 21, pivoted on saidsupportingarm independently of said roll-holder.

Signed at Syracuse, in the county of Onondaga and State of New York,this 21st day of June, A. D. 1904.

H HENRY W. MERRITT. Witnesses:

EARL GRAMER, W. 0. 000K.

